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Is buffer cache still effective for high speed PCM (phase change memory) storage?

Title
Is buffer cache still effective for high speed PCM (phase change memory) storage?
Authors
Lee E.Jin D.Koh K.Bahn H.
Ewha Authors
반효경
SCOPUS Author ID
반효경scopus
Issue Date
2011
Journal Title
Proceedings of the International Conference on Parallel and Distributed Systems - ICPADS
ISSN
1521-9097JCR Link
Citation
pp. 356 - 363
Indexed
SCOPUS scopus
Abstract
Recently, PCM (phase change memory) emerges as a new storage media and there is a bright prospect that PCM will be used as a storage device in the near future. Since the optimistic access time of PCM is expected to be almost identical to that of DRAM, we can make a question that the traditional buffer cache will be still effective for high speed secondary storage such as PCM. This paper answers it by showing that the buffer cache is still effective in such environments due to the software overhead and the bimodal block reference characteristics. Based on this observation, we present a new buffer cache management scheme appropriately for the system where the speed gap between the cache and storage is small. To this end, we analyze the condition that caching gains and find the characteristics of I/O traces that can be exploited in managing buffer cache for PCM-storage. © 2011 IEEE.
DOI
10.1109/ICPADS.2011.74
ISBN
9780769545769
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
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